Trailer hitch cover



FIG. 1 is a front perspective view of a trailer hitch cover, showing my new design; and,

FIG. 2 is a rear perspective view thereof.

The surface(s) or portion(s) of the article not shown in the drawing or described in the specification form(s) no part of the claimed design. 

The ornamental design for a trailer hitch cover, as shown and described. 